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/*!
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/*!
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flashdemo -- demo for Flash memory access from firmware and host software for ZTEX USB FPGA Module 1.2
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flashdemo -- demo for Flash memory access from firmware and host software for ZTEX USB-FPGA Module 1.2
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Copyright (C) 2009-2010 ZTEX e.K.
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Copyright (C) 2009-2011 ZTEX GmbH.
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http://www.ztex.de
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http://www.ztex.de
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This program is free software; you can redistribute it and/or modify
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License version 3 as
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it under the terms of the GNU General Public License version 3 as
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published by the Free Software Foundation.
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published by the Free Software Foundation.
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ENABLE_FLASH;
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ENABLE_FLASH;
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// this product string is also used for identification by the host software
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// this product string is also used for identification by the host software
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#define[PRODUCT_STRING]["Flash demo for UFM 1.2"]
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#define[PRODUCT_STRING]["Flash demo for UFM 1.2"]
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code char flash_string[] = "Hello World!";
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__code char flash_string[] = "Hello World!";
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// include the main part of the firmware kit, define the descriptors, ...
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// include the main part of the firmware kit, define the descriptors, ...
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#include[ztex.h]
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#include[ztex.h]
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void main(void)
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void main(void)
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{
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{
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xdata DWORD sector;
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__xdata DWORD sector;
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init_USB(); // init everything
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init_USB(); // init everything
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if ( flash_enabled ) {
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if ( flash_enabled ) {
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flash_read_init( 0 ); // prepare reading sector 0
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flash_read_init( 0 ); // prepare reading sector 0
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flash_read((xdata BYTE*) §or, 4); // read the number of last sector
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flash_read((__xdata BYTE*) §or, 4); // read the number of last sector
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flash_read_finish(flash_sector_size - 4); // dummy-read the rest of the sector + finish read operation
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flash_read_finish(flash_sector_size - 4); // dummy-read the rest of the sector + finish read operation
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sector++;
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sector++;
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if ( sector > flash_sectors || sector == 0 ) {
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if ( sector > flash_sectors || sector == 0 ) {
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sector = 1;
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sector = 1;
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}
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}
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flash_write_init( 0 ); // prepare writing sector 0
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flash_write_init( 0 ); // prepare writing sector 0
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flash_write((xdata BYTE*) §or, 4); // write the current sector number
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flash_write((__xdata BYTE*) §or, 4); // write the current sector number
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flash_write_finish(flash_sector_size - 4); // dummy-write the rest of the sector + finish write operation
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flash_write_finish_sector(flash_sector_size - 4); // dummy-write the rest of the sector + CRC
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flash_write_finish(); // finish write operation
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flash_write_init( sector ); // prepare writing sector sector
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flash_write_init( sector ); // prepare writing sector sector
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flash_write((xdata BYTE*) flash_string, sizeof(flash_string)); // write the string
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flash_write((__xdata BYTE*) flash_string, sizeof(flash_string)); // write the string
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flash_write_finish(flash_sector_size - sizeof(flash_string)); // dummy-write the rest of the sector + finish write operation
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flash_write_finish_sector(flash_sector_size - sizeof(flash_string)); // dummy-write the rest of the sector + CRC
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flash_write_finish(); // finish write operation
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}
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}
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while (1) { } // twiddle thumbs
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while (1) { } // twiddle thumbs
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}
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}
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